From c12fc0d6c3faa413b9feb2f3e9751e5614d8e5fe Mon Sep 17 00:00:00 2001
From: Wesley Wigham <wwigham@gmail.com>
Date: Wed, 28 Feb 2018 17:55:56 -0800
Subject: [PATCH] Format unique symmbol string output with `unique symbol` and
 not `typeof` within checker (#22247)

* Accept baseline update to symbol test

* Set default node flag instead of accepting new error
---
 src/compiler/checker.ts | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/compiler/checker.ts b/src/compiler/checker.ts
index ffbd83456aa..9579ba80d0f 100644
--- a/src/compiler/checker.ts
+++ b/src/compiler/checker.ts
@@ -2756,7 +2756,7 @@ namespace ts {
             }
         }
 
-        function typeToString(type: Type, enclosingDeclaration?: Node, flags?: TypeFormatFlags, writer: EmitTextWriter = createTextWriter("")): string {
+        function typeToString(type: Type, enclosingDeclaration?: Node, flags: TypeFormatFlags = TypeFormatFlags.AllowUniqueESSymbolType, writer: EmitTextWriter = createTextWriter("")): string {
             const typeNode = nodeBuilder.typeToTypeNode(type, enclosingDeclaration, toNodeBuilderFlags(flags) | NodeBuilderFlags.IgnoreErrors, writer);
             Debug.assert(typeNode !== undefined, "should always get typenode");
             const options = { removeComments: true };